About The RoleBlacksmith Agency is building AI into every part of how we work. As LLM Applications Engineer at Blacksmith, you own and ship our internal automation roadmap: production LLM and agent systems that real people on our team use every day. This is a builder role, not research. You will not train models.We hire engineers who have already shipped an LLM system to production and can walk us through it in detail: what it did, how it was built, what broke and what they changed. This is a full-time seat and it has to be your only job.Blacksmith Agency- Engineering- Full time, your only job- Remote (Latin America and South Africa)What You Will Build- Agents and workflows with tool use and function calling on Anthropic and OpenAI, with a framework or plain APIs.- Evals that prove a change made things better, and guardrails that stop a model taking a wrong or unsafe action.- Integrations connecting WordPress, Figma, Google Workspace,
Slack and our internal systems, including MCP servers.- Internal tools that take measurable hours off delivery, sales operations and project management.What You Bring- 2+ years building production software in Python or TypeScript / Node.Js.- At least one LLM or agent system you built yourself that ran in production with real users.- Hands-on tool use, evals and failure handling: validating model output, retries, human approval.- REST APIs, webhooks and cloud deployment.- Strong spoken English. You will talk through technical decisions on live calls with a US team.Not a fit if- You freelance or contract for other clients and would keep them alongside this job.- Your LLM work is demos, tutorials or chat prompting, or your focus is model training and research.#J-18808-Ljbffr